Heat transfer: Introduction to 3 Modes | Conduction Steady state one dimensional conduction formula | Conduction through rods Ohm's law analogy: Rods in series and parallel

Heat Transfer Modes|| Conduction

Heat Transfer |Conduction |Steady & Transient State |Conduction Rate |Questions|Thermal Resistance |Exercise Questions

Steady-state heat transfer through a gas occurs between two parallel wal ls. The ex periment is conduct ed in such conditions that the only process by which the heat is transferred is pure thermal conduction. The dependence of the thermal conductivity coefficient lambda is measured as a function of the gas pressure p , with the experiment conducted twice, for two different distances between the walls. The results are shown in the figure. What curve corresponds to the greater distance between the walls?

Assertion : Heat is supplied at constant rate from one end of a conducting rod. In steady state, temperature of all points of the rod becomes uniform. Reason : In steady state, temperature of rod does not increase.

Define conduction. Give one example where heat is transferred by the process of conduction.

Two identical rectangular rods of metal are welded end to end in series between temperatures of 0^(@)C and 100^(@)C and 10 J of heat is conducted (in a steady state process) through the rods in 2.0min . How long would it take for 10J to be conducted through the rods if they are welded together in parallel across the same temperatures ?

Explain the following in reference to thermal conduction in a rod: Steady state

A conducting rod MN of mass m and length 'l' is placed on parallel smooth conducting rails connected to an uncharged capacitor of capacitance C and a battery of emf epsilon as shown. A uniform magnetic field B is existing perpendicular to the plane of the rails. The steady state velocity acquired by the conducting rod MN after closing switch S is (neglect the resistance of the parallel rails and the conducting rod)